Croisier, Emmanuel
Liang, Su
Schweizer, Thomas
Balog, Sandor
Mionić, Marijana
Snellings, Ruben
Cugnoni, Joël
Michaud, Véronique
Frauenrath, Holger
Article History
Received: 27 October 2013
Accepted: 16 July 2014
First Online: 8 September 2014
Competing interests
: The authors declare no competing financial interests.